deny x.x.x.x; 

include blockip.conf;

[root@server nginx]# nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful

nginx -s reload

import time
from django.core.exceptions import PermissionDenied
 
from django.utils.deprecation import MiddlewareMixin
MAX_REQUEST_PER_SECOND=2 #每秒访问次数
class RequestBlockingMiddleware(MiddlewareMixin):
  def process_request(self,request):
     now=time.time()
     request_queue = request.session.get('request_queue',[])
     if len(request_queue) < MAX_REQUEST_PER_SECOND:
       request_queue.append(now)
       request.session['request_queue']=request_queue
     else:
       time0=request_queue[0]
     if (now-time0)<1:
       raise PermissionDenied('Forbidden user agent')
     request_queue.append(time.time())
     request.session['request_queue']=request_queue[1:]

MIDDLEWARE = [
 'django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'common.middleware.RequestBlockingMiddleware', #在sessions之后，auth之前
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware',
]